This is a note to let you know that I've just added the patch titled
USB: f81232: fix device initialisation at open
to the 3.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-f81232-fix-device-initialisation-at-open.patch
and it can be found in the queue-3.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 21886725d58e92188159731c7c1aac803dd6b9dc Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@xxxxxxxxx>
Date: Mon, 10 Jun 2013 18:29:37 +0200
Subject: USB: f81232: fix device initialisation at open
From: Johan Hovold <jhovold@xxxxxxxxx>
commit 21886725d58e92188159731c7c1aac803dd6b9dc upstream.
Do not use uninitialised termios data to determine when to configure the
device at open.
This also prevents stack data from leaking to userspace.
Signed-off-by: Johan Hovold <jhovold@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/serial/f81232.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/usb/serial/f81232.c
+++ b/drivers/usb/serial/f81232.c
@@ -165,11 +165,12 @@ static void f81232_set_termios(struct tt
/* FIXME - Stubbed out for now */
/* Don't change anything if nothing has changed */
- if (!tty_termios_hw_change(&tty->termios, old_termios))
+ if (old_termios && !tty_termios_hw_change(&tty->termios, old_termios))
return;
/* Do the real work here... */
- tty_termios_copy_hw(&tty->termios, old_termios);
+ if (old_termios)
+ tty_termios_copy_hw(&tty->termios, old_termios);
}
static int f81232_tiocmget(struct tty_struct *tty)
@@ -187,12 +188,11 @@ static int f81232_tiocmset(struct tty_st
static int f81232_open(struct tty_struct *tty, struct usb_serial_port *port)
{
- struct ktermios tmp_termios;
int result;
/* Setup termios */
if (tty)
- f81232_set_termios(tty, port, &tmp_termios);
+ f81232_set_termios(tty, port, NULL);
result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
if (result) {
Patches currently in stable-queue which might be from jhovold@xxxxxxxxx are
queue-3.9/usb-pl2303-fix-device-initialisation-at-open.patch
queue-3.9/usb-f81232-fix-device-initialisation-at-open.patch
queue-3.9/usb-spcp8x5-fix-device-initialisation-at-open.patch
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